28461590497 has 2 divisors, whose sum is σ = 28461590498. Its totient is φ = 28461590496.

The previous prime is 28461590491. The next prime is 28461590503. The reversal of 28461590497 is 79409516482.

It is a balanced prime because it is at equal distance from previous prime (28461590491) and next prime (28461590503).

It can be written as a sum of positive squares in only one way, i.e., 14806265761 + 13655324736 = 121681^2 + 116856^2 .

It is a cyclic number.

It is not a de Polignac number, because 28461590497 - 2¹⁹ = 28461066209 is a prime.

It is not a weakly prime, because it can be changed into another prime (28461590491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14230795248 + 14230795249.

It is an arithmetic number, because the mean of its divisors is an integer number (14230795249).

Almost surely, 2^28461590497 is an apocalyptic number.

It is an amenable number.

28461590497 is a deficient number, since it is larger than the sum of its proper divisors (1).

28461590497 is an equidigital number, since it uses as much as digits as its factorization.

28461590497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 28461590497 in words is "twenty-eight billion, four hundred sixty-one million, five hundred ninety thousand, four hundred ninety-seven".